Does anyone know if someone manufactures a tripod collar that would fit my old Pentax K 300 F4? This is a big, heavy lens that I like optically but find extremely difficult to use on a tripod. My Tamron 200-500 F5.6 is heavier yet, but having a tripod collar makes it a joy to use on a tripod � at least compared to my 300. RW - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .

